Weather strip



Dec. 16, 1941.

G. WOLFF ET AL WEATHER STRIP Filed Jan. 21, 1939 w. w o E m W; n w F4 rZ w,

m 5 3 fiw .7 Y 0% MM. 7 i

Patented Dec. 16, 1941 Ill., assigncrs to. Sager ll/lletal WeatherstripCompany, Chicago,jlll., a 'fcorporation of Illinois Application January21, 1939; swarm. 25am:

screams. (oust-c9) This invention relates in general to:weatherstripping, and; 'more particularly to metal Weatherstrippingwhich is adapted to. function as; a parting head or strip. for window:sash mounted ina window casing or frame.

A: principal 'object of' the invention isthe' asto provideaninterlocking slideand effective weather seal; in cooperative relationwith. slidin members provided onwooden windowv sash, and having.hearing-portions. for; the end: sliding surfaces: of the window sashwhich. make line 0011'. tact therewith, ratherthan surface contact;forthe' Purpose of reducing;- friction therebetween. A: furtherimportant; object of the invention is thaprovision of such: a. combinedmetal parting bead and Weatherstrip-which;isradapted'to be so securedo.the. windowv frame that the parting bead portion thereof. isresilientlydisplaceable to a; certain; extentvrelative to, the window frame,

and sash.

Numerous.- other objects and advantages; of. the invention; will. beapnarentas it is better under stood. from. the following description,which, when taken in connection with the accompany-- ins. drawing,discloses; a preferred embodiment:

thereof, r

In the drawing,

Figure-- l aspartial perspective. view showing. the installation of acombined parting bead and Weatherstrip embodying the features of theinstant; invention connection with a window frame and the window sashassociated therewith; and

Fig. 2 is a horizontal section of the same on an enlarged scale, with aslightly different type of window frame.

Referring more particularly to the drawing, reference numeral Hindicates in general a portion of a window casing or frame of the boxtype which includes a side plank or wall member l2, having the usualparting bead receiving channel or recess l3, an outer rail or stopmember l4 and an inner molding or stop member IS. The Window illustratedalso includes a pair of vertically slidable window sash 16. Since it isnot intended that the instant invention be limited to application to theparticular type of window herein illustrated; furthendescriptiontliereof is thought to be unnecessary toanunderstandin of the invention.1 7

Reference numeral l-T' indicates in general a combinedpartin'g bead andWeatherstrip em bodying the features of the invention which comprises acentral portion l8 and end-portions 7 Hand 2|. The member: H isformedfrom a single strip of sheet: metaL -with the centraliporticn mextending forwardly: from theplane thereof tozprovide asubstantially U-shaped; hollow strip. or bead; having side; walls .292' and a frontwal1 .z3:1 From-each'side of thefront wall 23, the metal of the" stripis bent. rearwardlyin spaced relationship to the associated. .side. wall22, andis then folded. inwardly-backwupon itself and forwardly into:contact with the. front. wall I 23, where; it. constitutes. the forwardend" of: the side wallzitz: Two: lateral walls tiara thus formed which;are disposed in. parallel... spaced relationship to the'side walls andterminate at their inner 1 ends; in rounded .edgeportions 25- which arespaced well away from theplan-e-ofthe end portions-19: ancl'2L.'Theimember I1 is: adapted to bepositioned on; .theforward. surfaceofthe side-plankv or wall member 12,, with the: end portions I9 and 2tthereof directly-adjacent the end. sliding. surfaces ofthe two windowsash: L6, and thecen: tralportion It. opposite or over the: channel. orrecess l3 and disposed; between the-sash: to function as a parting beadtherefor. The end portions 19 and 2| are each provided. with. a pairofparallel, longitudinal ribsor.- embossed portions 26 which constituteline contact bearing pertions for theendsliding. surfaces .of.- the.window. sash It. Directly adjacent itslongitudinal edge, the end. partion. l9: bentforw-ardly and; back upon itself to provide afiange 21formed as an integral part of the member I! and adapted to function as astop for properly positioning the same on the side plank l2.

The member I1 is secured to the forward surface of the side plank I! inthe following manner. Theouter rail I4 is kerfed or notched at 28 at itsinner end adjacent the forward surface of the side plank l2 to provide asuitable space within'which the outer edge of the end portion 19 of themember I! may be disposed. The flange 21 will thus abut against theinner end surface of the outer rail H to properly align and position themember l'l. Suitable longitudinally spaced apertures are provided ineach of the end portions [9 and 2|, adjacent their longitudinal edges,through which screws 29 may be screwed into the side plank l2 to securethe member I! thereto in the proper position, as determined by theflange 21. The inner molding I5 is then secured to the side plank I2 inthe usual manner, with inner edge overlapping the longitudinal edge ofthe end portion 2| of the member ll.

Co-operating weatherstrips of angle form (Fig. 2), comprising metalsliding members or rails 3!, are secured with one leg against the side,

edge or sliding surface of each of the window sash l6 by suitable nails,or the like, 32. The

other or free leg of each of these angle strips 3| U extends forwardlyin substantially parallel, spaced relationship to its associated sashl6, and is reinforced at its outer or forwardedge by being folded backupon itself at 33. folded edges 33 of the angle strips or rails 3| aredisposed between the associated side walls 22 and folded flanges orlateral walls 24 of the central or'partingbead portion l8 of the memberI1, and have a tight fit therewith to :form an interlocking slide andeffective weather seal. The folding of the severalparts, as abovedescribed, provides rounded edges which avoid any scraping or unduefriction between the relatively movable parts.

It will be noted also that'the ribs 26 on the endportions l9 and,2| ofthe combined parting bead and Weatherstrip. Ilare extended forward ly a'sufiicient distance to provide clearance for the anchored legs of theanglestrips 3|. In this manner, there will be'no contact between theseanchored leg portions of the angle strips 3|. and the member ll. Thefree legs of the angle strips 3| are so dimensioned as to terminate asubstantial distance short ofthe junction of the walls 22 and .24 of theparting bead portion l8 of the member ll. In this manner,.appreciableoutward movement of the strips 3| and sash l6 relative to the member I!is permitted, which may be caused by shrinkage of the window sash, forexample. Further outward movement of the strips 3| and sash IE will alsobe permitted without any danger of breaking the weather seal, becausethe particular construction of the member l1 and the manner of securingthe same adjacent its ends to the side plank l2, as above described,allows limited outward flexing of the central portion l8 away from theside plank without impairing the weather-tight connection between theside plank and the end portions I9 and 2| of the member I1.

In Fig. 2, the side plank [2 has been illustrated as one not having theusual parting bead receiving channel or recess 13. This has been donefor the purpose of showing that the instantinvention is equallyapplicable for use either in the presence or absence of the usualparting head These recess. In either case, or in any other installation,a substantially perfect weather seal is formed between the window frameand the member l1, while at the same time the parting bead portion N3 ofthe latter is resiliently displaceable to a certain extent relative tothe window frame and/or sash. Also, with or without such displacement, asubstantially perfect weather seal exists between the members I! and 3|.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention or sacrificing all of its material advantages, the formhereinbefore described being merely a preferred embodiment to the sidesurface of a window frame to provide a tight weather seal therewith, anda metal strip attached to the Window sash and having a flange projectingfrom said sash to beneath one of said flanges to be in interlockingengagement with said central parting bead portionto provide atight-weather seal therewith.

2. In a window, a strip for a window sash slidably disposed in a windowframe, comprising two end portions lying in substantially the same planewith each other and extending the full inner vertical length of saidframe and beyond and normal to said window sash, and attached adjacenttheir outer edges to the side surface of said frame, and a centralportion forming a hollow flange integrally'joined with said two endportions and extending from said plane to function as the usualparting-bead for the window sash and provided with folded flangesextending substantially parallel to the sides of said central portion,and metal strips attached to the window sash and having flangesprojecting from said sash beneath said folded flanges to be ininterlocking engagement with said central parting head portion in allpositions of the sash to provide a tight weather seal therewith.

GEORGE F. WOLFF. WILLARD CONGREVE.

